CN104181645B - Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre - Google Patents
Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre Download PDFInfo
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- CN104181645B CN104181645B CN201310226442.3A CN201310226442A CN104181645B CN 104181645 B CN104181645 B CN 104181645B CN 201310226442 A CN201310226442 A CN 201310226442A CN 104181645 B CN104181645 B CN 104181645B
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Abstract
The open a kind of truing tool of the present invention, for the position of fiber optic calibration in the interior hole of fiber stub, wherein, described truing tool comprises high precision external diameter alignment member and fiber position high-precision calibration element, and for making, the exterior circular column of fiber stub is directed at described high precision external diameter alignment member with the exterior circular column of fiber position high-precision calibration element; One end of described optical fiber is passed the interior hole of fiber stub and is inserted in the calibration hole of fiber position high-precision calibration element, for making the axis of the optical fiber in the interior hole of insertion fiber stub be directed at the exterior circular column of fiber stub determined center axis, thus the joints of optical fibre of high precision are produced with the fiber stub of low precision, reduce manufacturing cost. The present invention is open a kind of calibration steps also, and the precision adopting this truing tool and calibration steps to produce meets or exceeds the high-precision optical fiber junctor of single-mode fiber junctor.
Description
Technical field
The invention belongs to joints of optical fibre field, the fiber stub assembly that the present invention relates to a kind of truing tool for the position of fiber optic calibration (comprise that conventional single-core fiber, many fibre cores list are fine, the many optical fiber of Cheng Shu or many fibre bundles, mention " optical fiber " below presents and have and indicate that contain identical refers to meaning herein) in the interior hole of fiber stub and calibration steps and produced by this kind of truing tool and calibration steps and the joints of optical fibre. Specifically, the present invention proposes a kind of use and (there is relatively aperture, imperial palace hole and bias based on the slotting core of low precision, insert core such as similar multimode or insert the specification of the lower requirement of core than multimode) manufacture low cost, high-performance (low insertion loss), the novel technique that is easy to the single-mode fiber junctor of operation, revolutionize single-mode fiber junctor and high precision must be used to insert the prior art of core (the junctor of ultra-low loss uses the slotting core of the ultrahigh precision single mode of high cost).
Background technology
The slotting core being applied to the joints of optical fibre, also known as pin body. slotting core is the core component of the joints of optical fibre, and it is a kind of high precision components become by precision processing technology. in joints of optical fibre manufacturing process, usual employing will be peeled off and clean bare fibre passes the interior hole being full of glue, then solidified glue, is fixed on optical fiber in slotting core, then makes required optical fiber connector via a series of programs such as polishing, polishing, tests. inevitable error can be produced due to all manufacturing processedes and introduce tolerance artificially in order to dimensional fits/assembling needs, such as, diameter of bore is greater than optical fiber external diameter so that optical fiber can be worn in interior hole, such optical fiber external diameter and hole size need to there is inborn deviation, for another example, decentraction and interior hole and alignment fiducials (junctor taking cylindrical as alignment fiducials is mainly referred to slotting core external diameter) is there is and there is processing and manufacturing error etc. in optical fiber axle center and interior hole owing to there being space, these factors all can cause the transverse excursion in optical fiber axle center, thus affect the insertion loss when joints of optical fibre dock.
Owing to the mode field diameter of single-mode fiber is more much smaller than the mode field diameter of multimode optical fibers (for most of optical fiber communication, it it is roughly the relation of 1/5 to 1/6, such as, the representative diameter of the fibre core of the single-mode fiber of standard is about 9 ��m, the diameter of the fibre core of the multimode optical fibers of standard is generally 50 ��m or 62.5 ��m), therefore, the alignment precision of single-mode fiber requires will far away higher than the alignment precision requirement to multimode optical fibers, like this, the slotting core precision that the slotting core precision that single-mode fiber junctor uses to be used higher than multimode optical fibers junctor far away.
Single mode is inserted core and the relative dimensions of slotting core being required, the dimensional requirement in the concentricity of mainly hole and exterior circular column in slotting core diameter of bore and slotting core is very high, slotting for contrast single mode core and multimode is inserted the dimension precision requirement of core in the following aspects below:
1) core exterior circular column diameter tolerance of dimension is inserted
Single mode: insert core exterior circular column diameter size tolerance requirements and reach +/-0.0005mm, that is ,-0.0005mm��0.0005mm;
Multimode: insert core exterior circular column diameter size typical tolerances and require to reach +/-0.001mm, that is ,-0.001mm��0.001mm.
2) core diameter of bore is inserted:
Single mode: insert core diameter of bore tolerance of dimension at 0.000��0.001mm, inserts core hole size for low-loss single mode and even requires 0.0000��0.0005mm;
Multimode: insert core diameter of bore size typical tolerances at 0.000-0.004mm.
3) concentricity requirement of optical fiber and exterior circular column:
Single mode: concentricity general requirement reaches 0.001mm, inserts core for low-loss single mode, and concentricity requirement even reaches 0.0005mm;
Multimode: concentricity general requirement reaches 0.004mm.
In order to ensure to guarantee that single-mode fiber junctor reaches industry standard index of correlation requirement in the fabrication process, field is manufactured at present at the joints of optical fibre, usually use the slotting core of different accuracy requirement respectively for list, multimode optical fibers, namely multimode optical fibers junctor slotting core and single-mode fiber junctor is distinguished with slotting core. single mode/multimode that the joints of optical fibre use inserts its outward appearance of core, structure seems completely identical, but single mode is inserted core and is required very high to the relative dimensions of slotting core, especially in slotting core, the concentricity accuracy requirement of aperture, hole and exterior circular column is extremely high (usually will within 1.5 microns, in order to super low insertion loss when satisfied docking connects, precision even to be controlled in submicron rank-be less than 1 micron), the most direct result of high-precision requirement is, single mode inserts the high cost height causing single mode connector of core cost/price, especially outstanding for ultra-low loss junctor, inserting core cost is almost difference at double.
In the prior art, therefore, the slotting core (as precision is equal to or less than the precision that multimode inserts core) of low precision can not be used to produce the single-mode fiber junctor of high precision.
Summary of the invention
The object of the present invention is intended to solve at least one aspect of the above-mentioned problems in the prior art and defect.
It is an object of the present invention to provide a kind of truing tool for the position of fiber optic calibration in the fiber stub of low precision, it can improve the position precision of optical fiber in the interior hole of fiber stub so that it is meets or exceeds and inserts the position precision in the interior hole of core at single mode.
Another object of the present invention is to provide a kind of calibration steps for the position of fiber optic calibration in the fiber stub of low precision, it can improve the position precision of optical fiber in the interior hole of fiber stub so that it is meets or exceeds and inserts the position precision in the interior hole of core at single mode.
According to an aspect of the present invention, a kind of truing tool is provided, for the position of fiber optic calibration in the interior hole of fiber stub, wherein, described truing tool comprises high precision external diameter alignment member and fiber position high-precision calibration element, and for making, the exterior circular column of fiber stub is directed at described high precision external diameter alignment member with the exterior circular column of fiber position high-precision calibration element; One end of described optical fiber is passed the interior hole of fiber stub and is inserted in the calibration hole of fiber position high-precision calibration element, for making the axis of the optical fiber in the interior hole of insertion fiber stub be directed at the exterior circular column of fiber stub determined center axis.
According to an example of the present invention embodiment, the precision of described fiber stub is equal to or less than the precision of the slotting core of multimode of standard; And the precision of described fiber position high-precision calibration element is equal to or higher than the precision of the slotting core of single mode of standard.
Another example embodiments according to the present invention, described high precision external diameter alignment member is high precision alignment sleeve instrument, described fiber position high-precision calibration element inserts from one end of high precision external diameter alignment member, and described fiber stub inserts described high precision external diameter alignment member from the other end, after insertion, the exterior circular column determined center axis of described fiber stub is directed at the exterior circular column determined center axis of described high-precision calibration element.
Another example embodiments according to the present invention, described high precision external diameter alignment member is the integral element only formed by parts.
Another example embodiments according to the present invention, described high precision external diameter alignment member is the split type element formed by least two independent parts.
Another example embodiments according to the present invention, described high precision external diameter alignment member comprises: base portion, is formed with a recess in described base portion, forms a locating slot on the diapire of described recess; With top briquetting, described top briquetting is placed in the recess in base portion, for being remained in locating slot by fiber position high-precision calibration element.
Another example embodiments according to the present invention, described locating slot is V-type locating slot or U-shaped locating slot.
Another example embodiments according to the present invention, described fiber position high-precision calibration element is the superfinishing close slotting core instrument of precision higher than the precision of the slotting core of single mode of standard.
Another example embodiments according to the present invention, inserts the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face predetermined distance apart of fiber stub.
Another example embodiments according to the present invention, the part in the calibration hole being inserted into described fiber position high-precision calibration element of described optical fiber has predetermined length.
Another example embodiments according to the present invention, described truing tool also comprises: holder, keeps described high precision external diameter alignment member and described fiber position high-precision calibration element for fixing.
Another example embodiments according to the present invention, described high precision external diameter alignment member and described fiber position high-precision calibration element are fixed in holder removably.
Another example embodiments according to the present invention, described high precision external diameter alignment member and described fiber position high-precision calibration element are configured to separate parts, or are constructed to integral piece.
Another example embodiments according to the present invention, described truing tool also comprises: Separation control part, it is arranged between holder and the back seat of fiber stub or it is arranged on the inside of high precision external diameter alignment member, for controlling the distance inserted between the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face of fiber stub.
Another example embodiments according to the present invention, described truing tool also comprises: fiber stub takes out device, is enclosed within the back seat of fiber stub, for being calibrated at optical fiber and take out fiber stub assembly after fixing.
Another example embodiments according to the present invention, described Separation control part and described fiber stub or assembly take out device and are configured to separate parts, or are constructed to integral piece.
Another example embodiments according to the present invention, described fiber position high-precision calibration element is the integral element only formed by parts, and described calibration hole is circular hole or the feature holes meeting the special shape of optical fiber external form. Another example embodiments according to the present invention, described fiber position high-precision calibration element is the split type element formed by least two independent parts.
Another example embodiments according to the present invention, described fiber position high-precision calibration element comprises: pedestal, is formed with a recess in described pedestal, and a calibration hole is formed on the diapire of recess; And briquetting, described briquetting is placed in the recess of described pedestal, for being remained in calibration hole by the optical fiber of insertion calibration hole.
Another example embodiments according to the present invention, described calibration hole is U-type groove hole or V-groove hole.
According to another aspect of the present invention, it is provided that a kind of calibration steps for the position of fiber optic calibration in the interior hole of fiber stub, described method comprises the steps:
S100: providing an independent truing tool, the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the interior hole of fiber stub.
According to an example of the present invention embodiment, described truing tool is such alignment instrument.
Another example embodiments according to the present invention, described step S200 comprises the following steps:
S201: use high precision external diameter alignment member that the exterior circular column of fiber stub is directed at the exterior circular column of fiber position high-precision calibration element; With
S200: one end of the optical fiber in the interior hole through fiber stub is inserted in the calibration hole of fiber position high-precision calibration element, for making the axis of the optical fiber in the interior hole of insertion fiber stub be directed at the exterior circular column of fiber stub determined center axis.
Another example embodiments according to the present invention, it is provided with Separation control part, for controlling the distance inserted between the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face of fiber stub between holder and the back seat of fiber stub or in the inside of high precision external diameter alignment member.
Another example embodiments according to the present invention, inserts the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face predetermined distance apart of fiber stub.
Another example embodiments according to the present invention, the part in the calibration hole being inserted into described fiber position high-precision calibration element of described optical fiber has predetermined length.
Another example embodiments according to the present invention, being filled with glue or equivalence in the interior hole of described fiber stub can cured body, for being fixed in the interior hole of described fiber stub by described optical fiber, described glue was filled in the interior hole of fiber stub before or after optical fiber inserts the interior hole of fiber stub.
Another example embodiments according to the present invention, also comprises step after step S200:
S300: make glue curing thus optical fiber is fixed in fiber stub.
According to another aspect of the present invention, a kind of fiber stub assembly is provided, comprise fiber stub and it is arranged in the optical fiber in the hole of fiber stub, the precision of described fiber stub is equal to or less than the precision that standard multi-module inserts core, described fiber stub assembly utilizes such alignment instrument and/or such alignment method to make, the position precision of the optical fiber that the optical fiber of the fiber stub assembly made position precision in slotting core meets or exceeds the single-mode fiber ferrule assembly of standard in slotting core.
Another example embodiments according to the present invention, after the calibration, the axle center deviation inserted between the optical fiber in the interior hole of described fiber stub and the exterior circular column of fiber stub is submicron rank.
Another example embodiments according to the present invention, the diameter tolerance of dimension of the exterior circular column of described fiber stub is at-0.001mm��0.001mm.
Another example embodiments according to the present invention, the diameter tolerance of dimension in the interior hole of described fiber stub is at 0.000��0.030mm.
Another example embodiments according to the present invention, the diameter tolerance of dimension of the exterior circular column of described fiber stub is at-0.001mm��0.001mm, and the diameter tolerance of dimension in the interior hole of described fiber stub is at 0.000��0.030mm.
Another example embodiments according to the present invention, after optical fiber being fixed in the interior hole of fiber stub by glue, the eccentric distance that the maximum spacing between the inner-wall surface in the interior hole of described fiber stub and the periphery of described optical fiber is more than or equal between the axle center of the axle center of described optical fiber and the exterior circular column of described fiber stub.
According to another aspect of the present invention, it is provided that a kind of joints of optical fibre, the described joints of optical fibre comprise aforementioned fiber stub assembly.
According to another aspect of the present invention, a kind of joints of optical fibre are provided, the low-precision optical fiber comprising the slotting core of multimode that precision is equal to or less than standard inserts core, wherein, in the fabrication process, the position utilizing such alignment instrument and/or such alignment method to be inserted at low-precision optical fiber by optical fiber in the interior hole of core is calibrated, thus make optical fiber meet or exceed the position precision of optical fiber in the interior hole of the slotting core of single mode of standard in the position precision that low-precision optical fiber is inserted in the interior hole of core, and after the calibration, optical fiber is fixed on low-precision optical fiber to be inserted in core, thus the precision making the joints of optical fibre produced meets or exceeds the precision of single-mode fiber junctor of standard.
According to an example of the present invention embodiment, described optical fiber is conventional single-core fiber.
Another example embodiments according to the present invention, described optical fiber is the multicore fiber comprising multiple fibre core.
Another example embodiments according to the present invention, described optical fiber is the one-tenth bundle optical fiber comprising many optical fiber.
The present invention compared with prior art distinguishes and is, single-mode fiber is placed in the interior hole of the fiber stub of low precision, low precision inserts the space between the interior hole of core and optical fiber can insert the space between core and optical fiber (space fill by glue or equivalence cured body and solidify and optical fiber is fixed in interior hole) much larger than the high precision single mode used in prior art, and the optical fiber head end protruding from insertion core end face is guided in the calibration hole entering independent high-precision optical fiber position high-precision calibration element, the position of optical fiber in the fiber stub of low precision is carried out accurate calibration, and fix it to the low-precision optical fiber in system and insert in core, thus produce high precision junctor.
The technique broken through based on this invention and instrument, it is achieved that use the ferrule assembly of low precision to make the single-mode fiber junctor of high-performance (low insertion loss), low cost. Based on the joints of optical fibre that this inventive technique makes, compared with the junctor that existing use high precision inserts core making, have better at the precision repetition of the controllability of position precision of optical fiber processed, predictability, individuality to individuality, substantially increase performance and interaction (low insertion loss and low random interworking insert loss) at random of junctor like this.
For being for this kind of joints of optical fibre based on the slotting core of alignment fiducials by outside cylinder, the most basic functional packet of the truing tool of high precision forms containing high precision external diameter alignment unit (such as high precision external diameter alignment member instrument) and fiber position high-precision calibration unit (slotting core instrument as close in superfinishing) two Partial Feature, it is used for being directed at fiber stub exterior circular column and the fiber optic calibration position in interior hole respectively, makes the deviation of both physical axis drop to submicron rank.
Above-mentioned two portions feature assembles instrument external member by two or more part, it is possible to be designed to the tool piece of integration.
The present invention utilizes novel technique to achieve slotting core (precision is equal to or less than the precision that multimode inserts core) the production low cost adopting low precision, low-loss high-quality single-mode fiber connecting device.
By hereinafter reference accompanying drawing description made for the present invention, other object of the present invention and advantage it will be evident that and can help the present invention to be had comprehensive understanding.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the truing tool for the manufacture of fiber stub according to an example of the present invention embodiment;
Fig. 2 is the schematic diagram of the truing tool shown in Fig. 1, wherein demonstrates the holder of truing tool, Separation control part and fiber stub and takes out device;
Fig. 3 is the sectional view of the truing tool shown in Fig. 1;
Fig. 4 shows the sectional view of another kind of change case of truing tool;
Fig. 5 shows the sectional view of another change case of truing tool;
Fig. 6 shows the schematic diagram of the truing tool of another example embodiments according to the present invention;
Fig. 7 shows the sectional view of the truing tool in Fig. 6;
Fig. 8 shows the sectional view of the truing tool of another example embodiments according to the present invention;
Fig. 9 shows the sectional view of the fiber stub assembly utilizing the method for the present invention to produce;
Figure 10 display is according to the schematic diagram of another kind of optical fiber of the present invention;
Figure 11 shows the schematic perspective view of many loose optical fiber;
Figure 12 shows the end view of the loose optical fiber of many in Figure 11;
Figure 13 shows the schematic perspective view becoming bundle optical fiber formed after the loose optical fiber of many in Figure 11 with Figure 12 is calibrated in the calibration hole of the present invention; With
The end view of the one-tenth bundle optical fiber that Figure 14 is formed after showing the calibration in Figure 13.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical scheme of the present invention is described in further detail. In the description, same or similar drawing reference numeral indicates same or similar parts. The explanation of embodiment of the present invention is intended to the present general inventive concept to the present invention by following reference accompanying drawing to be explained, and not should be understood to a kind of restriction to the present invention.
Fig. 1 is the schematic diagram of the truing tool for the manufacture of fiber stub according to an example of the present invention embodiment; Fig. 2 is the schematic diagram of the truing tool shown in Fig. 1, wherein demonstrates the holder 500 of truing tool, Separation control part 610 and fiber stub and takes out device 600.
As depicted in figs. 1 and 2, this truing tool is used for the position of fiber optic calibration 400 in the interior hole of fiber stub 300. This truing tool mainly comprises high precision external diameter alignment member 100 and fiber position high-precision calibration element 200. The precision of fiber position high-precision calibration element 200 must far above the precision of fiber stub 300, such as, in the illustrated embodiment in which, the precision of fiber stub 300 is equal to or less than the precision of the slotting core of multimode of standard, and the precision of fiber position high-precision calibration element 200 reaches or higher than standard single mode insert core precision, and optical fiber 400 is the single-mode fiber of standard, or the single-mode fiber of diameter ratio standard is more carefully or thicker optical fiber.
In the embodiment of the exemplary shown in Fig. 1-2, high precision external diameter alignment member 100 is high precision alignment sleeve instrument, high precision external diameter alignment member 100 has first end and two end relative with first end, fiber position high-precision calibration element 200 inserts high precision external diameter alignment member 100 from first end (left end figure), and fiber stub 300 inserts high precision external diameter alignment member 100 from the 2nd end (right-hand member figure), the exterior circular column of the exterior circular column of fiber stub 300 with fiber position high-precision calibration element 200 can be directed at like this, thus calibrate the concentricity of the optical fiber 400 in the interior hole of insertion fiber stub 300 with exterior circular column, so that the axis of optical fiber 400 in the interior hole of insertion fiber stub 300 is directed at mutually with the axis of the calibration hole 201 of fiber position high-precision calibration element 200, preferably, the optical fiber 400 in the interior hole of insertion fiber stub 300 and the axle center deviation between the exterior circular column of fiber stub 300 is made to be submicron rank, or make the axis of optical fiber 400 in the interior hole of insertion fiber stub 300 and the deviation between the axis of the calibration hole 201 of fiber position high-precision calibration element 200 be submicron rank.
Please continue see Fig. 1 and Fig. 2, one end of optical fiber 400 is passed the interior hole of fiber stub 300 and is inserted in calibration hole 201, like this, can the position of fiber optic calibration 400 in the interior hole of fiber stub 300, the axis of optical fiber 400 inserting in the interior hole of fiber stub 300 is directed at mutually with the axis of the calibration hole 201 of fiber position high-precision calibration element 200, preferably, the axis of optical fiber 400 in the interior hole of insertion fiber stub 300 and the deviation between the axis of the calibration hole 201 of fiber position high-precision calibration element 200 is made to be submicron rank, or preferably, the optical fiber 400 in the interior hole of insertion fiber stub 300 and the axle center deviation between the exterior circular column of fiber stub 300 is made to be submicron rank.
Fig. 1 and Fig. 2 shows the enforcement schematic diagram of the truing tool for the manufacture of the joints of optical fibre. as depicted in figs. 1 and 2, the multimode optical fibers that single-mode fiber 400 passes low accuracy requirement is inserted core 300, then entered in the calibration hole 201 of fiber position high-precision calibration element 200 of high precision by the guiding structure of fiber position high-precision calibration element 200 front end, the calibration hole 201 of this high precision calibrated be positioned at low precision fiber stub 300 (as multimode or etc. low precision) the optical fiber 400 in hole (there is relatively aperture, imperial palace hole and bias) relative to the low-precision optical fiber slotting core 300 determined axial centerline of exterior circular column, eliminate owing to low-precision optical fiber inserts the possibility that the core 300 internal orifice dimension fiber position brought bigger than normal easily produces random bias, single-mode fiber is made accurately to replicate the position precision of truing tool on opposite, owing to the physical axis of the exterior circular column of the slotting core 300 of low-precision optical fiber is protected by the high precision external diameter alignment member 100 of precision, like this, be placed in low-precision optical fiber insert core 300 interior hole optical-fibre precise also collimated with physical centre's axis of the exterior circular column at the slotting core 300 of low-precision optical fiber processed.
The glue of fixed fiber or equivalence can be preset in the interior hole that low precision inserts core 300 by cured body 320 (see Fig. 1), it is also possible to be filled in optical fiber 400 from rear end by injection mode and/or capillarity after optical fiber 400 is calibrated and collimates and low precision is inserted the space between the interior hole of core 300.
Owing to inserting, in the low precision of system, the glue that core 300 end face has spilling, this end face can not with fiber position truing tool end contact, therefore, in the embodiment shown in Fig. 1 and Fig. 2, the fiber position high-precision calibration element 200 of insertion high precision external diameter alignment member 100 and the end face of fiber stub 300 are at a distance of predetermined distance d 1.
Due to the clearance gap between fiber position high-precision calibration element 200 and the end face of fiber stub 300 from and optical fiber 400 wear the fiber lengths in the calibration hole 201 of fiber position high-precision calibration element 200 and all directly affect calibration effect and technology difficulty, in enforcement, therefore need the fiber lengths effectively controlling in the calibration hole 201 of fiber position truing tool and the Distance geometry insertion fiber position high-precision calibration element 200 between the low precision insertion core end face of system. In the embodiment shown in Fig. 1 and Fig. 2, the part in the calibration hole 201 being inserted into fiber position high-precision calibration element 200 of optical fiber 400 has predetermined length d2, and this predetermined length d2 can determine according to actual alignment accuracy requirement and technology difficulty.
As shown in Figure 2, truing tool also comprises holder 500, keeps high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 for fixing. As shown in the figure, by screw element 510, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 are fixed in the interior hole of holder 500. Like this, it is possible to by dismounting screw element 510, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 are disassembled holder 500.
Although in the embodiment shown in Fig. 1-2, high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 are configured to separate parts, but, the present invention is not limited to this, and high precision external diameter alignment member 100 and fiber position high-precision calibration element 200 can also be constructed to integral piece.
After the calibration, by solidified glue, optical fiber 400 is fixed in fiber stub 300, after fixation, fiber stub 300 in system is extracted from truing tool, continues to realize and complete needing the joints of optical fibre of the high-precision low cost made to insert core with grinding technics according to the existing fibre that cuts.
Fig. 2 shows a kind of fiber stub for being extracted from truing tool by the fiber stub 300 in system and takes out device 600, this fiber stub takes out device 600 and is enclosed within the back seat 310 of fiber stub 300, device 600 is taken out, so that it may to be extracted from truing tool by the fiber stub made assembly by pulling out fiber stub outward.
As shown in Figure 2, truing tool also comprises Separation control part 610, this Separation control part 610 is arranged between the back seat 310 of holder 500 and fiber stub 300, for controlling the distance d1 inserted between the fiber position high-precision calibration element 200 of high precision external diameter alignment member 100 and the end face of fiber stub 300. In actual applications, it is possible to regulated the distance d1 between the fiber position high-precision calibration element 200 of insertion high precision external diameter alignment member 100 and the end face of fiber stub 300 by the thickness of interval control piece 610.
But, the present invention is not limited thereto illustrated embodiment, Separation control part 610 can also be arranged on the inside of high precision external diameter alignment member 100.
In the embodiment shown in Figure 2, Separation control part 610 and fiber stub taking-up device 600 are constructed to integral piece. But, the present invention is not limited to this, and Separation control part 610 and fiber stub take out device 600 can also be configured to separate parts.
The truing tool of the high precision shown in Fig. 1-2 is that the close fiber position high-precision calibration element 200 of the high precision external diameter alignment member 100 by high precision and superfinishing assembles, it is achieved insert high precision external diameter alignment and these two functions of fiber position high-precision calibration of core.
Like this, after having calibrated the position of optical fiber, through the related process flow process of solidified glue and a series of end face processing, just complete and inserted the low cost of core, high performance single-mode fiber junctor based on low precision.
Fig. 3 is the sectional view of the truing tool shown in Fig. 1. In embodiment shown in Fig. 1 to Fig. 3, the fiber position high-precision calibration element 200 of truing tool is the integral element only formed by parts, and calibration hole 201 is circular hole or the feature holes meeting the special shape of optical fiber external form.
Fig. 4 shows the sectional view of another kind of change case of truing tool.
Compared with the truing tool shown in Fig. 1 to Fig. 3, the difference of the truing tool shown in Fig. 4 is only that the structure of fiber position high-precision calibration element is different.
As shown in Figure 4, the briquetting 2002 that the ferrule body of fiber position high-precision calibration element 200 ' comprises pedestal 2001 and is separated with pedestal 2001. Pedestal 2001 is formed a recess, the diapire of recess is formed a calibration hole 201 '. Briquetting 2002 is placed in the recess of pedestal 2001, for being remained in calibration hole 201 ' by the optical fiber inserting calibration hole 201 '.
In a preferred embodiment, after briquetting 2002 is assembled in the recess of pedestal 2001, pedestal 2001 forms a complete right cylinder together with briquetting 2002, and is suitable in insertion high precision external diameter alignment member 100. In the embodiment shown in fig. 4, calibration hole 201 ' is formed U-type groove hole roughly.
Fig. 5 shows the sectional view of another change case of truing tool.
Compared with the truing tool shown in Fig. 1 to Fig. 3, the difference of the truing tool shown in Fig. 5 is only that the structure of fiber position high-precision calibration element is different.
As shown in Figure 5, fiber position high-precision calibration element 200 " the ferrule body briquetting 2012 that comprises pedestal 2011 and be separated with pedestal 2011. Pedestal 2011 is formed a recess, the diapire of recess is formed a calibration hole 201 ". Briquetting 2012 is placed in the recess of pedestal 2011, for inserting calibration hole 201 " optical fiber remain on calibration hole 201 " in.
In a preferred embodiment, after briquetting 2012 is assembled in the recess of pedestal 2011, pedestal 2011 forms a complete right cylinder together with briquetting 2012, and is suitable in insertion high precision external diameter alignment member 100.
In the embodiment shown in fig. 5, calibration hole 201 " it is formed V-groove hole roughly. But, the present invention is not limited to illustrated embodiment, and calibration hole can also be formed the groove hole of semi-circular groove hole roughly or other suitable shape.
Although in the embodiment shown in Fig. 4 and Fig. 5, fiber position high-precision calibration element is the split type element formed by two independent parts, but, the present invention is not limited to this, and fiber position high-precision calibration element can also be the split type element formed by the individual components of three or more than three.
In the embodiment shown in fig. 1, the high precision external diameter alignment member 100 of truing tool is the monoblock type alignment sleeve instrument only formed by parts. But, the present invention is not limited to this, and the high precision external diameter alignment member of truing tool can also be the split type alignment sleeve instrument only formed by least two independent parts.
Such as, Fig. 6 shows the schematic diagram of the truing tool of another example embodiments according to the present invention; Fig. 7 shows the sectional view of the truing tool in Fig. 6.
Compared with the truing tool shown in Fig. 1, the difference of the truing tool shown in Fig. 6 with Fig. 7 is mainly that the structure of high precision external diameter alignment member is different.
As shown in Figure 6 and Figure 7, in illustrated exemplary embodiment, high precision external diameter alignment member 100 ' is formed by two independent parts. The top briquetting 1002 that illustrated high precision external diameter alignment member 100 ' mainly comprises base portion 1001 and is separated with base portion 1001. Base portion 1001 is formed a recess 1003, the diapire of recess 1003 is formed a locating slot 1004. Top briquetting 1002 is placed in the recess 1003 in base portion 1001, for being remained in locating slot 1004 by the fiber position being placed in locating slot 1004 high-precision calibration element 200.
In the embodiment shown in Fig. 6 and Fig. 7, whole high precision external diameter alignment member 100 ' can be rectangular shape. In a preferred embodiment, when top briquetting 1002 is placed in the recess 1003 in base portion 1001, the end face of top briquetting 1002 is roughly concordant with the end face in base portion 1001.
In the embodiment shown in Fig. 6 and Fig. 7, locating slot is formed V-type locating slot.
Fig. 8 shows the sectional view of the truing tool of another example embodiments according to the present invention.
In the exemplary embodiment shown in Fig. 8, high precision external diameter alignment member is formed by two independent parts. The top briquetting 1012 that illustrated high precision external diameter alignment member mainly comprises base portion 1011 and is separated with base portion 1011. Base portion 1011 is formed a recess 1013, the diapire of recess 1013 is formed a locating slot 1014. Top briquetting 1012 is placed in the recess 1013 in base portion 1011, for being remained in locating slot 1014 by fiber position high-precision calibration element 200.
As compared to the truing tool shown in Fig. 6 with Fig. 7, the key distinction of the truing tool shown in Fig. 8 is only that the shape of the locating slot of high precision external diameter alignment member 100 is different. In the exemplary embodiment shown in Fig. 8, locating slot is formed U-shaped locating slot. But, the present invention is not limited to this, and locating slot is formed circular arc or other suitable shape.
In the embodiment of aforementioned exemplary, describing a kind of calibration steps for the position of fiber optic calibration in the interior hole of fiber stub, described method mainly comprises the steps:
S100: providing an independent truing tool, the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the interior hole of fiber stub.
Another example embodiments according to the present invention, abovementioned steps S200 can comprise the following steps:
S201: use high precision external diameter alignment member 100 that the exterior circular column of fiber stub 300 is directed at the exterior circular column of fiber position high-precision calibration element 200; With
S202: one end of the optical fiber 400 in the interior hole through fiber stub 300 is inserted in the calibration hole 201 of fiber position high-precision calibration element 200, for making the axis of the optical fiber 400 in the interior hole of insertion fiber stub 300 be directed at the exterior circular column of fiber stub 300 determined center axis.
Another example embodiments according to the present invention, also comprises step after step S200:
S300: be fixed in fiber stub 300 by optical fiber 400 by solidified glue, glue was filled in the interior hole of fiber stub 300 before or after optical fiber 400 inserts the interior hole of fiber stub 300.
Another example embodiments according to the present invention, after the calibration, the axle center deviation between the optical fiber 400 in the interior hole of insertion fiber stub 300 and the exterior circular column of fiber stub is submicron rank.
Fig. 9 shows the sectional view of the fiber stub assembly utilizing the method for the present invention to produce. As shown in Figure 9, after glue 301 solidifies, optical fiber 400 is fixed in the interior hole of fiber stub 300, after optical fiber 400 is fixed in the interior hole of fiber stub 300, in one embodiment of the invention, the eccentric distance that maximum spacing (that is, the maximum gauge of the Jiao Quan that glue 301 is formed) between the inner-wall surface in the interior hole of fiber stub 300 and the periphery of optical fiber 400 is more than or equal between the axle center C300 of the axle center C400 of optical fiber 400 and the exterior circular column of fiber stub 300.
In the embodiment of an example of the present invention, the diameter tolerance of dimension of the exterior circular column of fiber stub 300 is at-0.001mm��0.001mm.
In the embodiment of another exemplary of the present invention, the diameter tolerance of dimension in the interior hole of fiber stub 300 is at 0.000��0.030mm.
The protection object of the present invention is not limited only to such alignment instrument and/or such alignment method, also comprises the fiber stub assembly utilizing such alignment instrument and/or such alignment method to make and comprises the joints of optical fibre of this fiber stub assembly.
In the embodiment of another exemplary of the present invention, describe a kind of joints of optical fibre, comprise precision and it is equal to or less than the slotting core of low-precision optical fiber that standard multi-module inserts core, wherein, in the fabrication process, the position utilizing such alignment instrument and/or such alignment method to be inserted at low-precision optical fiber by optical fiber in the interior hole of core is calibrated, thus make optical fiber meet or exceed the position precision in the interior hole of the slotting core of single mode of standard in the position precision that low-precision optical fiber is inserted in the interior hole of core, and after the calibration, optical fiber is fixed on low-precision optical fiber to be inserted in core, thus the precision making the joints of optical fibre produced meets or exceeds the precision of single-mode fiber junctor of standard.
In the embodiment shown in fig. 1, optical fiber is conventional single-core fiber 400. But, the present invention is not limited to this, and optical fiber can also be the optical fiber of other type. Such as, the other two kinds of optical fiber shown in Figure 10 and Figure 13.
Figure 10 display is according to the schematic diagram of another kind of optical fiber of the present invention. As shown in Figure 10, optical fiber is the multicore fiber 410 comprising multiple fibre core 411. In the illustrated embodiment in which, this multicore fiber 410 comprises 19 fibre cores 411, but, the present invention is not limited to this, and this multicore fiber 410 can also comprise two or more root fibre cores 411. In the illustrated embodiment in which, many fibre cores 411 are wrapped up and are fixed on suitable position by coating 412, and coating 412 forms an exterior circular column.
Figure 11 shows the schematic perspective view of many loose optical fiber; Figure 12 shows the end view of the loose optical fiber of many in Figure 11; Figure 13 shows the schematic perspective view becoming bundle optical fiber formed after the loose optical fiber of many in Figure 11 with Figure 12 is calibrated in the calibration hole of the present invention; The end view becoming bundle optical fiber formed show the calibration in Figure 13 with Figure 14 after.
As is illustrated by figs. 11 and 12, seven loose optical fiber 421 are emitted on together irregularly, and the mutual position between these loose optical fiber 421 is uncertain. But, when the optical fiber 421 that these are loose be inserted into the present invention truing tool calibration hole 201 in after, as shown in Figure 13 and Figure 14, these seven loose optical fiber 421 are just held suitable position, form the one-tenth bundle optical fiber (or being called many fibre bundles) 420 that one comprises seven optical fiber 421.
As shown in Figure 13 and Figure 14, in this one-tenth bundle optical fiber 420, mutually tangent between any two adjacent optical fiber 421. Such as, in the illustrated embodiment in which, an optical fiber is in centre, and another six roots of sensation optical fiber is around this root optical fiber, and these seven optical fiber are tangent between two.
Although in the illustrated embodiment in which, this one-tenth bundle optical fiber 420 comprises seven optical fiber 421, but, the present invention is not limited to this, and this one-tenth bundle optical fiber 420 can also comprise two or more root optical fiber 421.
In one embodiment of the invention, the every root optical fiber 421 in bundle optical fiber 420 is become can be the multicore fiber 410 shown in the single-core fiber 400 of the routine shown in Fig. 1 or Figure 10.
In order to calibrate the loose optical fiber of many shown in Figure 11 and Figure 12 421, calibration hole 201 can be the hole of circular hole, quincunx hole, polygonal hole or other suitable shape, if the one-tenth bundle optical fiber 420 that the calibration fiber that many are loose can be become any two adjacent optical fiber 421 all mutually tangent by the shape of this calibration hole.
In one embodiment of the invention, the optical fiber with multiple fibre core (single fine multicore, many fibre bundles) after the calibration of position precision, be cured in low precision and insert before in core, specific distribution orientation is adjusted at the radial orientation angle of optical fiber, and after being solidificated in slotting core, the radial orientation angle of optical fiber meets the interworking docking of multi-core connector.
The present invention compared with prior art, has abandoned in prior art and has manufactured single mode and multimode optical fibers junctor by distinguishing the slotting core of different accuracy specification.
Especially, low-loss or ultra-low-loss fiber junctor is made when needs, the method that existing technical staff uses is that the accuracy specification by improving slotting core (reduces aperture, interior hole, and the concentricity of hole and exterior circular column in improving) realize the target of ultra-low loss, the distinct disadvantage done like this is, its one, that means a kind of high cost; They are two years old, owing in the close slotting core of superfinishing, hole becomes less, and the change that the actual outside diameter of optical fiber also exists batch, it it is a challenge greatly for wearing fibre (in whole slotting core hole), causing disconnected fine probability to increase, particularly dark damage can cause the reliability of light junctor to reduce; Its three, for batch micro operations, Zong there is discreteness that some is individual eccentric, as long as occurring, namely the random interworking insertion loss of light connecting device is destroyed, etc.
And adopt the technology of the present invention, namely the truing tool of high precision is utilized to be collimated by the physical location being positioned at the single-mode fiber that low precision inserts core (such as multimode inserts core), owing to replicating the position precision of the high-precision calibration instrument on opposite at optical fiber processed, achieve in the slotting core of low precision, produce the single-mode fiber connecting device of high precision, high-performance (low-loss). This invention, considerably reduce slotting core accuracy requirement, the Material Cost of product is reduced technical project, equally, no matter this technology is use manually or fibre is worn in automatization, wearing fine action and become more easy, be particularly advantageous in the automatization of technological process, increasing production capacity and reducing costs further becomes possibility; Need to further pointing out, this technology knows the performance of product by the precision of instrument, have controllability, predictability, individuality to individuality precision can repetition. Like this, this invention achieves low cost and high performance connecting device manufacturing technology simultaneously.
It will be appreciated by those skilled in the art that, embodiment described above is all exemplary, and the technician of this area can make improvements, when the conflict of the structure described in various embodiment in not recurring structure or principle, independent assortment can be carried out.
Although describing the present invention by reference to the accompanying drawings, but embodiment disclosed in accompanying drawing is intended to the preferred embodiment for the present invention is carried out exemplary illustration, and can not be interpreted as a kind of restriction to the present invention.
Although some embodiments of this present general inventive concept have been shown and explanation, those skilled in the art will appreciate that, when not deviating from principle and the spirit of this present general inventive concept, can these embodiments being made a change, the scope of the present invention limits with claim and their jljl of waiting.
It is noted that word " comprising " does not get rid of other element or step, word "a" or "an" is not got rid of multiple. In addition, any element numbers of claim should not be construed as and limits the scope of the invention.
Claims (33)
1. a truing tool, for the position of fiber optic calibration in the interior hole of fiber stub, the multimode that the precision of described fiber stub is equal to or less than standard inserts the precision of core, it is characterised in that,
Described truing tool comprises high precision external diameter alignment member and fiber position high-precision calibration element, and the precision of described fiber position high-precision calibration element is equal to or higher than the precision of the slotting core of single mode of standard,
For making, the exterior circular column of fiber stub is directed at described high precision external diameter alignment member with the exterior circular column of fiber position high-precision calibration element;
One end of described optical fiber is passed the interior hole of fiber stub and is inserted in the calibration hole of fiber position high-precision calibration element, for making the axis of the optical fiber in the interior hole of insertion fiber stub be directed at the exterior circular column of fiber stub determined center axis,
Described truing tool also comprises:
Holder, keeps described high precision external diameter alignment member and described fiber position high-precision calibration element for fixing;
Separation control part, is arranged between holder and the back seat of fiber stub, for the distance controlled between fiber position high-precision calibration element and the end face of fiber stub; With
Fiber stub takes out device, is enclosed within the back seat of fiber stub, for being calibrated at optical fiber and take out, after fixing, the ferrule assembly comprising optical fiber.
2. truing tool according to claim 1, it is characterised in that, described high precision external diameter alignment member is high precision alignment sleeve instrument,
Described fiber position high-precision calibration element inserts from one end of high precision external diameter alignment member, and described fiber stub inserts described high precision external diameter alignment member from the other end, after insertion, the exterior circular column determined center axis of described fiber stub is directed at the exterior circular column determined center axis of described high-precision calibration element.
3. truing tool according to claim 1, it is characterised in that,
Described high precision external diameter alignment member is the integral element only formed by parts.
4. truing tool according to claim 1, it is characterised in that,
Described high precision external diameter alignment member is the split type element formed by least two independent parts.
5. truing tool according to claim 4, it is characterised in that, described high precision external diameter alignment member comprises:
Base portion, is formed with a recess in described base portion, forms a locating slot on the diapire of described recess; With
Top briquetting, described top briquetting is placed in the recess in base portion, for being remained in locating slot by fiber position high-precision calibration element.
6. truing tool according to claim 5, it is characterised in that, described locating slot is V-type locating slot or U-shaped locating slot.
7. truing tool according to claim 2, it is characterised in that, described fiber position high-precision calibration element is the superfinishing close slotting core instrument of precision higher than the precision of the slotting core of single mode of standard.
8. truing tool according to claim 7, it is characterised in that,
Insert the fiber position high-precision calibration element of described high precision external diameter alignment member and the end face predetermined distance apart of fiber stub.
9. truing tool according to claim 8, it is characterised in that,
Part in the calibration hole being inserted into described fiber position high-precision calibration element of described optical fiber has predetermined length.
10. truing tool according to claim 9, it is characterised in that,
Described high precision external diameter alignment member and described fiber position high-precision calibration element are fixed in holder removably.
11. truing tools according to claim 10, it is characterised in that,
Described high precision external diameter alignment member and described fiber position high-precision calibration element are configured to separate parts, or are constructed to integral piece.
12. truing tools according to claim 11, it is characterised in that,
Described Separation control part and described fiber stub take out device and are configured to separate parts, or are constructed to integral piece.
13. truing tools according to claim 2, it is characterised in that,
Described fiber position high-precision calibration element is the integral element only formed by parts, and described calibration hole is circular hole or the feature holes meeting the special shape of optical fiber external form.
14. truing tools according to claim 1, it is characterised in that, described fiber position high-precision calibration element is the split type element formed by least two independent parts.
15. truing tool according to claim 14, it is characterised in that, described fiber position high-precision calibration element comprises:
Pedestal, is formed with a recess in described pedestal, a calibration hole is formed on the diapire of recess; With
Briquetting, described briquetting is placed in the recess of described pedestal, for being remained in calibration hole by the optical fiber of insertion calibration hole.
16. truing tools according to claim 15, it is characterised in that, described calibration hole is U-type groove hole or V-groove hole.
17. 1 kinds of calibration stepss for the position of fiber optic calibration in the interior hole of fiber stub, described method comprises the steps:
S100: providing a truing tool as according to any one of claim 1-16, the precision of described truing tool is higher than the precision of fiber stub; With
S200: use the position of truing tool fiber optic calibration in the interior hole of fiber stub.
18. calibration stepss according to claim 17, wherein, described step S200 comprises the following steps:
S201: use high precision external diameter alignment member that the exterior circular column of fiber stub is directed at the exterior circular column of fiber position high-precision calibration element; With
S202: one end of the optical fiber in the interior hole through fiber stub is inserted in the calibration hole of fiber position high-precision calibration element, for making the axis of the optical fiber in the interior hole of insertion fiber stub be directed at the exterior circular column of fiber stub determined center axis.
19. calibration stepss according to claim 18, it is characterised in that,
The interior hole of described fiber stub is filled with glue, for described optical fiber is fixed in the interior hole of described fiber stub,
Described glue was filled in the interior hole of fiber stub before or after optical fiber inserts the interior hole of fiber stub.
20. calibration stepss according to claim 19, wherein, also comprise step after step S200:
S300: make glue curing thus optical fiber is fixed in fiber stub.
21. 1 kinds of fiber stub assemblies, comprise single hole fiber stub and it is arranged in the optical fiber in the hole of fiber stub, the precision of described fiber stub is equal to or less than the precision of the slotting core of multimode of standard, it is characterized in that, described fiber stub assembly utilizes the calibration steps of arbitrary in the truing tool of arbitrary in aforementioned claim 1-16 or aforementioned claim 17-20 to make, and the precision of the fiber stub assembly made meets or exceeds the precision of the single-mode fiber ferrule assembly of standard.
22. fiber stub assemblies according to claim 21, wherein,
After the calibration, the axle center deviation inserted between the optical fiber in the interior hole of described fiber stub and the exterior circular column of fiber stub is submicron rank.
23. fiber stub assemblies according to claim 21, wherein,
The diameter tolerance of dimension of the exterior circular column of described fiber stub is at-0.001mm��0.001mm.
24. fiber stub assemblies according to claim 21, wherein,
The diameter tolerance of dimension in the interior hole of described fiber stub is at 0.000��0.030mm.
25. fiber stub assemblies according to claim 21, wherein,
The diameter tolerance of dimension of the exterior circular column of described fiber stub is at-0.001mm��0.001mm; And
The diameter tolerance of dimension in the interior hole of described fiber stub is at 0.000��0.030mm.
26. fiber stub assemblies according to claim 25, wherein,
Can after optical fiber be fixed in the interior hole of fiber stub by cured body by glue or equivalence, the eccentric distance that the maximum spacing between the inner-wall surface in the interior hole of described fiber stub and the periphery of described optical fiber is more than or equal between the axle center of the axle center of described optical fiber and the exterior circular column of described fiber stub.
27. 1 kinds of joints of optical fibre, it is characterised in that, the described joints of optical fibre comprise the fiber stub assembly that claim 21 limits.
28. 1 kinds of joints of optical fibre, the low-precision optical fiber comprising the slotting core of multimode that precision is equal to or less than standard inserts core, it is characterised in that,
In the fabrication process, the position utilizing the calibration steps of arbitrary in the truing tool of arbitrary in aforementioned claim 1-16 or aforementioned claim 17-20 to be inserted at low-precision optical fiber by optical fiber in the interior hole of core is calibrated, thus make optical fiber meet or exceed the position precision in the interior hole of the slotting core of single-mode fiber of standard in the position precision that low-precision optical fiber is inserted in the interior hole of core, and after the calibration, optical fiber is fixed on low-precision optical fiber insert in core, thus the precision making the joints of optical fibre produced meets or exceeds the precision of single-mode fiber junctor of standard.
29. joints of optical fibre according to claim 27 or 28, it is characterised in that, described optical fiber is conventional single-core fiber.
30. joints of optical fibre according to claim 27 or 28, it is characterised in that, described optical fiber is the multicore fiber comprising multiple fibre core, i.e. single fine multicore.
31. joints of optical fibre according to claim 27 or 28, it is characterised in that, described optical fiber is the one-tenth bundle optical fiber comprising many optical fiber, i.e. the aggregate of many optical fiber that single-core fiber is formed.
32. according to the joints of optical fibre described in claim 30, the optical fiber with multiple fibre core after the calibration of position precision, be cured in low precision and insert before in core, specific distribution orientation is adjusted at the radial orientation angle of optical fiber, and after being solidificated in slotting core, the radial orientation angle of optical fiber meets the interworking docking of multi-core connector.
33. according to the joints of optical fibre described in claim 31, the optical fiber with multiple fibre core after the calibration of position precision, be cured in low precision and insert before in core, specific distribution orientation is adjusted at the radial orientation angle of optical fiber, and after being solidificated in slotting core, the radial orientation angle of optical fiber meets the interworking docking of multi-core connector.
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| CN201310226442.3A CN104181645B (en) | 2013-05-28 | 2013-06-07 | Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre |
| PCT/IB2014/061971 WO2014195893A1 (en) | 2013-06-07 | 2014-06-05 | Indexing tool, calibrating method, ferrule assembly and fiber optic connector |
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| CN201310226442.3A CN104181645B (en) | 2013-05-28 | 2013-06-07 | Truing tool, calibration steps, fiber stub assembly and the joints of optical fibre |
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| CN107608032B (en) | 2014-07-01 | 2019-12-20 | 泰科电子(上海)有限公司 | Optical fiber alignment device, ferrule device and method for manufacturing ferrule device |
| CN107918174A (en) | 2016-10-11 | 2018-04-17 | 康普技术有限责任公司 | Ferrule assembly, the method and optical fiber fixing mould for manufacturing ferrule assembly |
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| CN203299417U (en) * | 2013-05-28 | 2013-11-20 | 泰科电子(上海)有限公司 | Calibration tool |
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| JP3363479B2 (en) * | 1992-07-17 | 2003-01-08 | 住友電気工業株式会社 | Optical connector |
| JP2001249249A (en) * | 2000-03-07 | 2001-09-14 | Fujikura Ltd | Multi-fiber connector and its attaching method and jig for attaching optical fiber |
| JP2012185283A (en) * | 2011-03-04 | 2012-09-27 | Furukawa Electric Co Ltd:The | Multi-fiber optical connector, manufacturing method for multi-fiber optical connector, and alignment member for manufacturing multi-fiber optical connector |
| US8936401B2 (en) * | 2011-08-30 | 2015-01-20 | Claude Belleville | Method for disposable guidewire optical connection |
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| US4830456A (en) * | 1986-11-15 | 1989-05-16 | Sumitomo Electric Industries, Ltd. | Optical connector and process for producing the same |
| US5664039A (en) * | 1994-06-08 | 1997-09-02 | The Whitaker Corporation | High density fiber ferrules and connectors |
| CN203299417U (en) * | 2013-05-28 | 2013-11-20 | 泰科电子(上海)有限公司 | Calibration tool |
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